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Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of intangible assets by class
Identifiable intangible assets consisted of the following:
(In millions)Gross
Carrying
Amount
Accumulated
Amortization
Net Book
Value
March 31, 2023
Customer relationships$14,644 $6,671 $7,973 
Acquired software and technology2,360 1,162 1,198 
Trade names635 310 325 
Purchased software1,109 605 504 
Capitalized software and other intangibles2,847 853 1,994 
Total$21,595 $9,601 $11,994 
(In millions)Gross
Carrying
Amount
Accumulated
Amortization
Net Book
Value
December 31, 2022
Customer relationships$14,795 $6,371 $8,424 
Acquired software and technology2,510 1,234 1,276 
Trade names633 295 338 
Purchased software1,146 595 551 
Capitalized software and other intangibles2,601 775 1,826 
Total$21,685 $9,270 $12,415 
Schedule of amortization expense of intangible assets
Amortization expense associated with the above identifiable intangible assets was as follows:
Three Months Ended
March 31,
(In millions)20232022
Amortization expense$595 $625